so i disconnected my Shift PLus after it was shifting hard without even having it on. so i disconnected the shift plus all together, but my car is still shifting hard.. not that i mind it so much, cuz its much better than stock, but still i want the option to make it shift hard or not,

does anyone know why my tranny is still shifting hard with no shift plus? im trying to figure it out, but im not sure, shud i flush the transmission flud?